Set default grid when doing a backup and restore

When restoring from a tablet because phones don't have
the same table some issues can ocure because we setup a
non valid grid, the correct thing is to setup a default.

Bug: 325285743
Fix: 332964986
Flag: ACONFIG narrow_grid_restore enabled
Test: BackupAndRestoreDBSelectionTest
(cherry picked from https://googleplex-android-review.googlesource.com/q/commit:df7d2b08614adfd19245577724588307ff439a7d)
Merged-In: I28bf02e83dddf5ae84818d879a5e21600eddf67e
Change-Id: I28bf02e83dddf5ae84818d879a5e21600eddf67e